Cited by 56Ethics in Clinical ResearchGlobal Cancer Incidence and ScreeningCultural Competency in Health Care

Interventions to increase racial and ethnic minority accrual into cancer clinical trials: A systematic review

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Nouvini, Rosa, Parker, Patricia A., Malling, Charlotte D., Godwin, Kendra, Costas‐Muñiz, Rosario·2022·Cancer

Abstract

Background: Racial and ethnic minorities (REMs) continue to be underrepresented in clinical trials despite the 1993 National Institutes of Health's Revitalization Act mandating the representation of women and underrepresented minority groups in clinical trials. Although Blacks represent 15% and Hispanics 13% of the cancer population, their clinical trial enrollment rates are disproportionately low at 4% to 6% and 3% to 6%, respectively. A systematic review exploring interventions aimed at improving cancer clinical trial (CCT) enrollment for REMs was conducted. Methods: A systematic search of PubMed, Cochrane CENTRAL, and Ovid PsycINFO was conducted for English‐language studies since 1993. Inclusion criteria included peer‐reviewed, US‐based studies with interventions aimed to recruit underrepresented minority adult patients into cancer clinical trials. REM groups were defined as Black, Hispanic, Asian, American Indian, and Native Hawaiian/other Pacific Islander. Results: The systematic search identified 3123 studies, of which nine met inclusion criteria. Interventions included patient navigation/coaching ( n = 4), a clinical trial educational video ( n = 2), institutional research infrastructure changes ( n = 1), a relationship building and social marketing recruitment model ( n = 1), and cultural competency training for providers ( n = 1). A statistically significant improvement in accrual was shown in three of the patient navigation interventions, one of the clinical trial educational videos and an institutional research infrastructure change. Conclusions: This systematic review illustrates several potential mechanisms by which to increase CCT recruitment for patients of REM backgrounds in various clinical settings. More randomized controlled trials are needed to further explore the benefits of these interventions for REMs.

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  • A frequently cited reason for underrepresentation of certain minority ethnic groups in clinical trials is pervasive mistrust in the healthcare system, often attributed to historical instances of mistreatment and exploitation.

    “A frequently cited reason for the underrepresentation of certain minority ethnic groups in clinical trials is a pervasive mistrust in the healthcare system. This is often attributed to historical instances of mistreatment and exploitation.”

    From Enablers and barriers of clinical trial participation in adult patients from minority ethnic groups: a systematic review (2025) · cites this paper as [3]

    The Introduction (page unavailable) identifies mistrust as an extensively studied barrier to minority enrollment in cancer clinical trials. It does not explicitly describe that mistrust as pervasive throughout the healthcare system or attribute it to historical mistreatment and exploitation; its references to the Tuskegee study do not establish that full claim. (LLM, conf=0.84)

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  • Minority ethnic groups have often been underrepresented or omitted from clinical trial research.

    “Historically, there has been a lack of ethnic representation in clinical trial participants; minority ethnic groups have often been underrepresented or omitted from research [3, 4].”
  • The Tuskegee Syphilis study and the Henrietta Lacks incident are examples of unethical and exploitative research.

    “Two infamous examples of such unethical and exploitative research are often quoted: the Tuskegee Syphilis study, in which Black men were intentionally denied treatment for syphilis; and the Henrietta Lacks (HeLa) incident, where the patient’s cancer cells were provided to researchers unbeknownst to her.”

    From Enablers and barriers of clinical trial participation in adult patients from minority ethnic groups: a systematic review (2025) · cites this paper as [3]

    The Introduction discusses mistrust as a barrier to clinical-trial enrollment, and the References list works about the Tuskegee study. Neither passage describes Tuskegee as unethical research or addresses the denial of treatment. Searches for Henrietta Lacks and HeLa found no passage about her cells or consent. (LLM, conf=0.74)

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  1. [27]Veritas Health Innovation. Covidence Systematic Review Software. Accessed August 30, 2022. http://www.covidence.org

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Authors
Nouvini, R., Parker, P. A., Malling, C. D., Godwin, K., & Costas‐Muñiz, R.
Affiliations
  • Memorial Sloan Kettering Cancer Center (US)
  • Memorial Sloan Kettering Cancer Center New York New York USA
Venue
Cancer
Publisher
Wiley
Published
2022-09-15
Volume
128
Issue
21
Pages
3860-3869
ISSN
  • 0008-543X (ISSN-L)
  • 1097-0142
OpenAlex
W4295907091
Cited by
56
References
48
Citations by year
2026: 13 · 2025: 15 · 2024: 19 · 2023: 9
FWCI
2.13
Type
journal article
Language
en
Open access
Locations
  • Cancer (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Foundation for the National Institutes of Health (P30 CA008748)
  • National Institutes of Health (CA008748, P30)
Topics
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Ethics in Clinical Research
  • Health Sciences › Medicine › Oncology › Global Cancer Incidence and Screening
  • Social Sciences › Sociology and Political Science › Cultural Competency in Health Care
Keywords
racial and ethnic minorities, cancer clinical trials, clinical trial accrual, underrepresentation in clinical trials, patient navigation, patient coaching, cultural competence training, social marketing, Black patients, Hispanic patients
MeSH terms
Ethnic and Racial Minorities, Adult, Ethnicity, Female, Humans, Minority Groups, Neoplasms, Racial Groups

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